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Geometry Basics IV

Geometric Properties, Including Symmetry, Movements, Comparison, Misc.

Perimeter The distance around a polygon, found by adding the lengths of the sides
Area The number of square units needed to cover a region, found by multiplication
Volume The number of cubic units needed to fill a solid figure, found by multiplication
Height The dimension that must be multiplied by the length and width to determine volume
Exponent The tiny raised number (a 2 or 3) that must be written next to the unit in area or volume
Line symmetry The property of a figure that can be folded and the two parts will match
Line of symmetry The vertical, horizontal, or diagonal line on which you fold a figure to get two matching sides
Congruent Figures that have the same size AND shape
Similar Figures that have the same shape but are NOT the same size
Asymmetrical A figure that CANNOT be folded along a line so that the two parts will match
Slide Also called a translation, sliding a figure in a straight line
Flip Also called a reflection, flipping a figure over a line
Turn Also called a rotation, turning a figure around a point or vertex
Transformation A movement of a figure that does not change the size or shape
Apex The point where the triangular faces of a pyramid meet
Translation Sliding a figure in a straight line
Reflection Flipping a figure over a line
Rotation Turning a figure around a point or vertex
Complementary Angles Two angles that add up to 90 degrees
Supplementary Angles Two angles that add up to 180 degrees
Created by: Rvanmeter